NOTE 17. Quarterly Data (Unaudited)
| (Millions, except per-share amounts) | First | Second | Third | Fourth | Year | |||||||||||
| 2013 | Quarter | Quarter | Quarter | Quarter | 2013 | |||||||||||
| Net sales | $ | 7,634 | $ | 7,752 | $ | 7,916 | $ | 7,569 | $ | 30,871 | ||||||
| Cost of sales | 3,969 | 4,013 | 4,148 | 3,976 | 16,106 | |||||||||||
| Net income including noncontrolling interest | 1,147 | 1,213 | 1,245 | 1,116 | 4,721 | |||||||||||
| Net income attributable to 3M | 1,129 | 1,197 | 1,230 | 1,103 | 4,659 | |||||||||||
| Earnings per share attributable to 3M | ||||||||||||||||
| common shareholders - basic | 1.63 | 1.74 | 1.81 | 1.65 | 6.83 | |||||||||||
| Earnings per share attributable to 3M | ||||||||||||||||
| common shareholders - diluted | 1.61 | 1.71 | 1.78 | 1.62 | 6.72 | |||||||||||
| (Millions, except per-share amounts) | First | Second | Third | Fourth | Year | |||||||||||
| 2012 | Quarter | Quarter | Quarter | Quarter | 2012 | |||||||||||
| Net sales | $ | 7,486 | $ | 7,534 | $ | 7,497 | $ | 7,387 | $ | 29,904 | ||||||
| Cost of sales | 3,889 | 3,870 | 3,935 | 3,991 | 15,685 | |||||||||||
| Net income including noncontrolling interest | 1,141 | 1,186 | 1,180 | 1,004 | 4,511 | |||||||||||
| Net income attributable to 3M | 1,125 | 1,167 | 1,161 | 991 | 4,444 | |||||||||||
| Earnings per share attributable to 3M | ||||||||||||||||
| common shareholders - basic | 1.61 | 1.68 | 1.68 | 1.43 | 6.40 | |||||||||||
| Earnings per share attributable to 3M | ||||||||||||||||
| common shareholders - diluted | 1.59 | 1.66 | 1.65 | 1.41 | 6.32 | |||||||||||
Gross profit is calculated as net sales minus cost of sales.